Blue water is methylene blue. Disease preventive measure is snake oil. Just a pathetic excuse in my opinion. The fish does not need meds in its water as long as the water is replaced frequently to cope with the wastes that is responsible for the deterioration of water quality and even health issues.

Hi! I just joined and want to say 'Thank you' for this forum and especially thank you for the "Must Read Fish Care' thread. Wow, that answered all the questions I had.

Currently I do not have my own Betta but yesterday I received a friend's Betta to take care of for about 3 weeks while the family is on vacation. I had fish, including a Betta, years ago, so it's been awhile and I needed a refresher course on the care of Betta's - and this place had the answers!

I can tell Mr. Fishy, as I call him, is happy because there were tiny bubbles today and by reading this thread I now know what that means.